Which step is a part of internal respiration? Oxygen rich blood is taken up by the tissues.

Air is inhaled through the nostrils.

Air is exhaled through the nostrils.

Gaseous exchange of oxygen and carbon dioxide occurs at the alveoli.

Which strategy is an effective way to overcome internal barrier to seeking ? a) getting permission b) finding financial support c) becoming employed d) calling a hotline

Which description best defines the nervous system and its two main branches? a: the message center of the body, split into the autonomic nervous system and the somatic nervous system b: the control panel of the body, split into the central nervous system and the exterior nervous system c: the message center of the body, split into the central nervous system and the peripheral nervous system d: the control panel of the body, split into the brain and the spinal cord

When a freind is not tellig you everything you should a: bug them till they tell you b: ask them polietly to tell you c; stay silent your whole life d leave them they will tell you on there own time